It's commonly accepted that Jesus was a carpenter by trade. So I've always wondered why there was never a Christian sect that viewed carpentry as a pietistic practice, seeking to become more like Christ by doing what he did to earn a living. This probably wouldn't be a denomination in its own right - in fact, one variation could easily be a Catholic or Orthodox monastic order that practiced carpentry as a means of bringing in income for the monastery. There have been far more bizarre practices and it's the sort of thing that would probably be accepted even by those who don't practice it.